How to Abbreviate Military Ranks
Service-Specific Abbreviations
In many countries, the department or ministry of defense uses service-specific abbreviations for military ranks.
——Abbreviations used in civilian situations are punctuated and non-service-specific in form: Gen., Lt. Gen., Maj. Gen., Brig. Gen., and Col.
——Service-specific abbreviations have the advantage of identifying an Army General (GEN) from a Marine General (Gen) at a glance. Use of service-specific abbreviations is correct in both civilian and military circumstances: anyone can use them anytime.
——The United States Department of Defense (DoD) styles abbreviations for ranks and ratings as follows:
——-U.S. Army, DoD Service-Specific
—-—U.S. Marine Corps, DoD Service-Specific
——-U.S. Navy, DoD Service-Specific
——-U.S. Air Force, DoD Service-Specific
—— U.S. Space Force, DoD Service-Specific
—––U.S. Coast Guard, DoD Service-Specific
Robert Hickey author of “Honor & Respect”
U.S. Army
General | GEN How to Abbreviate Military Ranks
Lieutenant general | LTG
Major general | MG
Brigadier general | BG
Colonel | COL
Lieutenant colonel | LTC
Major | MAJ
Captain | CPT
First lieutenant | 1LT
Second lieutenant | 2LT
Chief warrant officers W-5 to W-2 | CW5 | CW4 | CW3 | CW2
Warrant officer W-1 | WO1
Sergeant major of the Army | SMA
Command sergeant major | CSM
Sergeant major | SGM
First sergeant | 1SG
Master sergeant | MSG
Sergeant first class | SFC
Staff sergeant | SSG
Sergeant | SGT
Corporal | CPL
Specialist | SPC
Private, first class | PFC
Private E-2 | PV2
Private E-1 | PV1
U.S. Marine Corps
General | Gen How to Abbreviate Military Ranks
Lieutenant general | LtGen
Major general | MajGen
Brigadier general | BGen
Colonel | Col
Lieutenant colonel | LtCol
Major | Maj
Captain | Capt
First lieutenant | 1stLt
Second lieutenant | 2ndLt
Chief warrant officers W-5 To 2 | CWO5 | CWO4 | CWO3 | CWO2
W-1 Warrant officer | WO
Sergeant major of the Marine Corps | SgtMajMC
Sergeant major | SgtMaj
Master gunnery sergeant | MGySgt
First sergeant | 1stSgt
Master sergeant | MSgt
Gunnery sergeant | GySgt
Staff sergeant | SSgt
Sergeant | Sgt
Corporal | Cpl
Lance corporal | LCpl
Private first class | PFC
Private | Pvt
Robert Hickey author of “Honor & Respect”
U.S. Navy
Fleet admiral | FADM
Admiral | ADM
Vice admiral | VADM
Rear admiral, upper half | RADM or RADM U
Rear admiral, lower half | RDML or RADM L
Captain | CAPT
Commander | CDR
Lieutenant commander | LCDR
Lieutenant | LT
Lieutenant, junior grade | LTJG
Ensign | ENS
Chief warrant officers W-5 To 2 | CWO2 | CWO3 | CWO4 | CWO5
Warrant officer W-1 | WO1
Master chief petty officer of the Navy | MCPON
Fleet command master chief petty officer | FLTMC
Force command master chief petty officer | FORMC
Command master chief petty officer | CMDCM
Master chief petty officer | MCPO
Senior chief petty officer | SCPO
Chief petty officer | CPO
Petty officer first class | PO1
Petty officer second class | PO2
Petty officer third class | PO3
Seaman | SN
Seaman apprentice | SA
Seaman recruit | SR
U.S. Air Force
General | Gen How to Abbreviate Military Ranks
Lieutenant general | Lt Gen
Major general | Maj Gen
Brigadier general | Brig Gen
Colonel | Col
Lieutenant colonel | Lt Col
Major | Maj
Captain | Capt
First lieutenant | 1st Lt
Second lieutenant | 2nd Lt
Chief master sergeant of the Air Force | CMSAF
Command chief master sergeant | CCMSgt
First sergeant, E-9 | 1stSgt
Chief master sergeant | CMSgt
First sergeant, E-8 | 1stSgt
Senior master sergeant | SMSgt
First sergeant, E-7 | 1stSgt
Master sergeant | MSgt
Technical sergeant | TSgt
Staff sergeant | SSgt
Senior airman | SrA
Airman first class | A1C
Airman | Amn
Airman basic | AB
Robert Hickey author of “Honor & Respect”
U.S. Space Force
General | Gen How to Abbreviate Military Ranks
Lieutenant general | Lt Gen
Major general | Maj Gen
Brigadier general | Brig Gen
Colonel | Col
Lieutenant colonel | Lt Col
Major | Maj
Captain | Capt
First lieutenant | 1st Lt
Second lieutenant | 2nd Lt
Chief master sergeant of the Space Force | CMSSF
Chief master sergeant | CMSgt
Senior master sergeant | SMSgt
Master sergeant | MSgt
Technical sergeant | TSgt
Staff sergeant | SSgt
Specialist 4 | Spc4
Sspecialist 3 | Spc3
Specialist 2 | Spc2
Specialist 1 | Spc1
Robert Hickey author of “Honor & Respect”
U.S. Coast Guard
Admiral | ADM How to Abbreviate Military Ranks
Vice admiral | VADM
Rear admiral, upper half | RADM / RADM U
Rear admiral, lower half | RDML / RADM L
Captain | CAPT
Commander | CDR
Lieutenant commander | LCDR
Lieutenant | LT
Lieutenant, junior grade | LTJG
Ensign | ENS
Chief warrant officers W-5 To 2 | CWO2 | CWO3 | CWO4 | CWO5
Warrant officer W-1 | WO1
Master chief petty officer of the Coast Guard | MCPO-CG
Command master chief | CMC
Master chief petty officer | MCPO
Senior chief petty officer | SCPO
Chief petty officer | CPO
Petty officer first class | PO1
Petty officer second class | PO2
Petty officer third class | PO3
Seaman | SN
Seaman apprentice | SA
Seaman recruit | SR
Civilian-style, U.S. Army, Marine Corps & Air Force
General | Gen. How to Abbreviate Military Ranks
Lieutenant general | Lt. Gen.
Major general | Maj. Gen.
Brigadier general | Brig. Gen.
Colonel | Col.
Lieutenant colonel | Lt. Col.
Major | Maj.
Captain | Capt.
First lieutenant | 1st Lt.
Second lieutenant | 2nd Lt.
Cadet | Cdt.
Warrant Officer, USA and USMC
Chief warrant officers W-5 | Chief Warrant Officer 5
Chief warrant officers W-4 | Chief Warrant Officer 4
Chief warrant officers W-3 | Chief Warrant Officer 3
Chief warrant officers W-2 | Chief Warrant Officer 2
Warrant officer W-1 | Warrant Officer
Army Enlisted Ranks
Sergeant major of the Army | Sgt. Maj. of the Army
Command sergeant major | Command Sgt. Maj.
Sergeant major | Sgt. Maj.
First sergeant | 1st Sgt.
Master sergeant | Master Sgt.
Platoon Sergeant | P. Sgt.
Sergeant first class | Sgt. 1st Class
Staff sergeant | Staff Sgt.
Sergeant | Sgt.
Corporal | Cpl.
Specialist | Spc.
Private, first class | Pfc.
Private E-2 | Pvt.
Private E-1 | Pvt.
Marine Corps Enlisted Ranks
Sergeant major of the Marine Corps | Sgt. Major of the Marine Corps
Sergeant major | Sgt. Major
Master gunnery sergeant | Master Gunnery Sgt.
First sergeant | 1st Sgt.
Master sergeant | Master Sgt.
Gunnery sergeant | Gunnery Sgt.
Staff sergeant | Staff Sgt.
Sergeant | Sgt.
Corporal | Cpl.
Lance corporal | Lance Cpl.
Private first class | Private 1st Class
Private | Pvt.
Air Force Enlisted Ranks
Chief master sergeant of the Air Force | Chief Master Sgt. of the Air Force
Chief master sergeant | Chief Master Sgt. | CM Sgt.
Command chief master sergeant | Command Chief Master Sgt. | CCM Sgt.
Senior master sergeant | Senior Master Sgt.
Master sergeant | Master Sgt.
Technical sergeant | Tech. Sgt.
Staff sergeant | Staff Sgt.
Senior airman | Senior Airman
Airman first class | Airman 1st Class
Airman | Airman
Airman basic | Airman
Robert Hickey author of “Honor & Respect”
Civilian-style, U.S. Navy & Coast Guard
Admiral | Adm. How to Abbreviate Military Ranks
Vice admiral | Vice Adm.
Rear admiral, upper half | Rear Adm.
Rear admiral, lower half | Rear Adm.
Captain | Capt.
Commander | Cmdr.
Lieutenant commander | Lt. Cmdr.
Lieutenant | Lt.
Lieutenant, junior grade | Lt. j.g.
Ensign | Ensign
Chief warrant officers W-5 To 2 | Chief Warrant Officer
Warrant officer W-1 | Warrant Officer
Master chief petty officer of the Navy | Master Chief Petty Officer of the Navy
Master chief petty officer of the Coast Guard | Master Chief Petty Officer of the Coast Guard
Command master chief | Command Master Chief
Master chief petty officer | Master Chief Petty Officer
Senior chief petty officer | Senior Chief Petty Officer
Chief petty officer | Chief Petty Officer
Petty officer first class | Petty Officer 1st Class
Petty officer second class | Petty Officer 2nd Class
Petty officer third class | Petty Officer 3rd Class
Seaman | Seaman
Seaman apprentice | Seaman Apprentice
Seaman recruit | Seaman Recruit
See These Related Posts:
—––—How to Address Active Duty Personnel
———How to Address Retired Personnel
—––—How to Address Reservists
—––—Use of Rank by Retired Personnel
—––—Use of Rank by a Reservist
—––—Use of Rank by a Veteran
—––—How to Address a Military Doctor
—––—How to Address a Military Chaplain
—––—How to Address a Military Couple
—––—How to Abbreviate Ranks
Robert Hickey author of “Honor & Respect”
When Should You Use the Forms on this Page?
You can use these forms of address for any mode of communication: addressing a letter, invitation, card or Email. (If there are differences between the official and social forms of address, I will have mentioned the different forms.) The form noted in the salutation is the same form you say when you say their name in conversation or when you greet them.
___What I don’t cover on this site are many things I do cover in my book: all the rules of forms of address, about names, international titles, precedence, complimentary closes, details on invitations, place cards, all sorts of introductions, etc. I hope you’ll get a copy of the book if you’d like the further detail.
Not Finding Your Answer?
—-#1) At right on desktops, at the bottom of every page on tablets and phones, is a list of all the offices, officials & topics covered on the site.
—-#2) If you don’t see the official you seek included or your question answered send me an e-mail. I am pretty fast at sending a reply: usually the next day or so (unless I am traveling.) Note: I don’t have mailing or Email addresses for any of the officials and I don’t keep track of offices that exist only in history books.
—-#3) If I think your question is of interest to others, Sometimes I post the question – but always change all the specifics.
— Robert Hickey
Robert Hickey author of “Honor & Respect”
Recommended Resources: The Protocol School of Washington (PSOW) and Protocol and Diplomacy International – Protocol Officers Association (PDI-POA) For more information see the Protocol Resources page.